Engine-Codes - BMW - P1091 BMW

P1091 BMW Code - Pre-Catalyst Fuel Trim Too Rich Bank 1

- Code Popularity: 5,452 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
Table of contents
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What are the Possible Causes of the DTC P1091 BMW?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Low fuel pressure
  • Large vacuum leak on engine
  • Faulty Mass Air Flow (MAF) sensor
  • Faulty Ignition
  • Faulty fuel injector
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How to Fix the DTC P1091 BMW?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P1091 BMW code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the P1091 BMW Code Mean?

Pre-Catalyst Fuel Trim Too Rich Bank 1 is the generic description for the P1091 BMW code, but the manufacturer may have a different description for your model and year vehicle. Currently, we have no further information abouth the P1091 BMW OBDII code.

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P1091 BMW Code - Pre-Catalyst Fuel Trim Too Rich Bank 1

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